LRP zr32 spec 4 - Will it run on 20%

[Strikos]

I’m about to break in my new engine, I have a new bottle of 20% nitro but LRP recommend running it on 25%

Will I have any issues running on 20%?
What glow plug would you recommend?

 

[Bluetickduke]

use the #5 that comes in it

I broke mine in on 20/14 and bash on it still when I'm low on 30%

it works alright